River Otter on the Eramosa River

On Wednesday December 17th, 2025, while out exploring the river ice with my students we came to a bend of the Eramosa River where I knew the ice was thickest. While out on the ice, I came across some interesting tracks. Coyote tracks double registering? Fisher? River Otter?
Here I detail how I came to the conclusion of River Otters.